Presser foot for sewing machines



Get. 31, 1939. c. w. MUELLER- 2,178,18

PRESSER FOOT FOR SEWING MACHINES Original- Filed May 18. 1937 Fig.1. .34

7 jwucnfoz Char/e 8 IV. Mae/Aer Patented Oct. 31, 1939 UNITED STATES PRESSER FOOT FOR SEWING MACHINES Charles W. Mueller, St.- Louis, Moi, assignor to Lewis Invisible Stitch Machine Company, St. Louis, Mo., a corporation of Maine Original application May 18, 1937, Serial No. 143,387. Divided and this application January 22, 1938, Serial No. 186,440 v 6 Claims.

This invention relates to new and useful improvements in sewing machine presser feet generally, although more particularly to a presser foot adapted for use in a blind stitch sewing machine.

This application constitutes a division of my copending application Serial No. 143,387, filed May 18, 1937, for improvements in Sewing machines.

The principal object of my invention is to pro- 10 vide a presser foot with a cloth retainer which is adjustable towards and from the needle, and an edge guide for-the hem which is bodily movable with the retainer and is mounted thereon for transverse adjustments relative thereto.

With the above and other objects in view which will more fully appear, the nature of the invention will be more clearly understood by following the description, the appended claims, and the several views illustrated in the accompanying drawing.

In the drawing:

Figure 1 is an enlarged top plan view of a presser foot constructed in accordance with my invention and showing the hemmed cloth thereunder,

Figure 2 is a bottom plan view thereof,

Figure 3 is a perspective view of the cloth retainer, and

Figure 4 is a perspective view of the edge guide.

Like reference numerals designate corresponding parts throughout the several figures of the drawing.

Referring to the accompanying drawing, the presser foot B is provided with a longitudinally extending opening 28 through whichthe body fabric C being hemmed is projected upwardly by a ridge forming element (not shown) into position to be entered by the needle D which reciprocates centrally across said opening. In order to retain the ridged fabric against the thrust of the needle, I have provided the presser foot B with a cloth retainer L which cooperates with the ridge forming gement and is adjustable longitudinally with respect to the needle, and to 46 guide the inner edge of the hem fold in proper relation to the needle, I have mounted an edge guide M on the cloth retainer for transverse adjustments relative thereto. The foot is provided at its front end with a bearing lug I3 on the right 50 of the opening 28 of the foot. Mounted in this lug is a horizontally disposed split bushing 14 of steel which projects laterally from the side thereof opposite the opening 28 to form an extended bearing. A rock shaft 15 is journaled in the bearing and is provided at its inner end with an eccentric pin 16. The outer end of the rock shaft is provided with a screw-driver slot by means of which the shaft may be rocked, and a set screw 18 is threadably engaged in the outer end of the bushing to retain the shaft in an ad- 5 justed position. The cloth retainer L is formed of thin spring steel, and the front end is provided with spaced bearing eyes 19, 19 which are journaled on the eccentric pin I6, and are retained thereon by a screw which is threaded into the 10 end of the pin. The cloth retainer extends rearwardly into the presser foot opening 28 directly above the ridge forming element, and the rear edge of the retainer is located immediately in front of the needle path, the retainer having a stop portion l which overhangs the left edge of the presser foot opening and bears against the upper face of the foot to limit the downward movement of said retainer. A coil spring 8| is disposed around the eccentric pin 16 between the go bearing eyes l9, 19 of the retainer, one end of the spring bearing downwardly upon the retainer and the other end being anchored in a slot 82 of the bushing. It will, therefore, be seen that the spring yieldably holds the retainer against the g5 ridge of fabric which is formed by the ridge forming element, and consequently said ridged fabric is held by the retainer against the thrust of the needle. The edge guide M includes a horizontal supporting arm 83 having a slot 84 and is mounted 30 on the cloth retainer L for transverse adjustments relative thereto. A screw 85 passes through the slot 84 and into the retainer and functions to retain the guide in any position of adjustment. Integral with the left end of the arm 83 is a 35 depending and forwardly extending edge guiding finger 86 which extends rearwardly along and projects below the left hand edge of the retainer L. From the above, it will be observed that the retainer L can be adjusted towards or from the 40 needle path to meet different working conditions; that the edge guideM will be adjusted therewith, and that the edge guide is adjustable transversely It will be observed by reference to Figure 3 45 of the drawing that the retainer memberL has a laterally directed slot therein. The edge guide shown in detail in Figure 4, and which is mounted for transverse adjustments on the member L includes a shank portion which depends from the arm portion 83 so as to be projected through and movable in said slot.

It is of course to be understood that the details of structure and arrangement of parts may be 55 relative to the retainer.

variously changed and modified without departing from the spirit and scope of my invention.

I claim:

1. A presser foot having an elongated opening,

a cloth retainer mounted on the foot and projecting into said opening, means for imparting to said retainer movements of adjustment in the direction 0! the length 01' said opening and for securing said retainer in its various positions of adjustment, and an edge guide mounted on said retainer for transverse adjustments relative thereto.

2. A presser foot having an elongated opening, a cloth retainer mounted onthe foot and projecting into said opening, means for imparting to said retainer movements of adjustment in the direction 01' the length or said opening and for securing said retainer in its various positions of adjustment, and an edge guide substantially coextensive in length with and mounted on said retainer i'or transverse adjustments relative thereto and projecting downwardly into said opening below said retainer.

3. A presser i'oot having an elongated opening, a cloth retainer pivoted on an eccentric pin sup ported above said foot and projecting into said opening,- said pin being adjustable for altering the position of the retainer in said said opening, spring means for urging the retainer downwardly, a stop flxed to the retainer and overhanging the loot along side said opening to limit the downward movement of said retainer, and an edge guide mounted on said retainer for transverse adjustments relative thereto and projecting downwardly into said opening below said retainer.

4. A presser foot having an elongated opening and an upstanding transversely disposed bearing, a shaft rockably mounted in the bearing and having an eccentric pin portion movable about the axis of said shaft when the shaft is rocked about its axis, and a spring pressed cloth retainer supported on the pin portion and projected into the opening tor adjustment longitudinally therein.

5. A presser i'oot having an elongated opening and an upstanding transversely disposed bearing, a shaft roekably mounted in the bearing and having an eccentric pin portion movable about the asisoisaid shattwhentheshaitisrockedabout its axis, a spring preued cloth retainer supported on the pin portion and projected into the opening for adjustment longitudinally therein, and an edge guide mounted on said retainer for transverse adjustments relative thereto and projecting downwardly into said opening below said retainer.

6. A presser foot having an elongated opening and an upstanding transversely disposed bearing, a shalt rockably mounted in the bearing and having an eccentric pin portion movable about the axis of said shalt when the shaft is rocked about its axis, a spring pressed cloth retainer supported on the pin portion and projected into the opening for adjustment longitudinally therein and having a laterally directed slot therein, and an edge guide mounted on said retainer for transverse adjustments relative thereto and projecting downwardly into said opening below said retainer and including a depending shank portion projected through and movable in said slot.

CHARLES W. MUELLER. 

